Bullous Pemphigoid

What is it? Bullous Pemphigoid is a sub-epidermal autoimmune blistering disease. “Bullous” means blistering and “pemphigoid” comes from the Greek word pemphix and means bubbles. Bullous Pemphigoid is the commonest type of autoimmune blistering disease, with an incidence of 12.1 to 66 new cases per million per year. Image reproduced with permission of Dr Dedee […]

Brachioradial Pruritus

What is it? Also known as … Brachioradial Itch Brachioradial Pruritus is a skin condition where the affected person is troubled by abnormal skin sensations on the outer forearms, upper arms and occasionally on the top of the shoulder.  The affected person may describe the sensations as itching, burning, prickling or stinging. What does it […]


What is it? Blastomycosis is a very rare fungal infection caused by breathing in microscopic particles (spores) of the fungus Blastomyces dermatitidis (B. dermatitidis). Blastomycosis is not usually found in Australia.  Originally it was thought to be found only in North America, but cases have been reported from many countries in the world.  It occurs mostly […]

Biopsy of the Skin

What is it? A skin biopsy is one of the most important tools in the diagnosis and management of skin diseases. It involves removing a small piece of skin for evaluation under the microscope by the pathologist. Why is it needed? A skin biopsy is a simple procedure that provides valuable information to help confirm […]

Biologic Treatments Used in Dermatology

What is it? Biologics are medications made from human or animal proteins. They are designed to specifically target biologic pathways that cause inflammation in the skin and other organs. Biologics have been used in many people worldwide to treat severe psoriasis, psoriatic arthritis, other types of arthritis and inflammatory bowel diseases (e.g. Crohn’s disease). Biologic medications […]

Jessner Lymphocytic Infiltrate

What is it? Also known as … Benign Lymphocytic Infiltration of the skin, Jessner–Kanof Lymphocytic infiltration of the skin What is Jessner Lymphocytic Infiltrate? It is a benign skin condition characterised by persistent lymphocyte (immune) cells in the skin. It may be a variant of lupus erythematosus, but this remains uncertain. What causes it? The cause […]

Becker’s Naevus

What is it? Also known as … Becker’s Melanosis Becker’s Naevus is a birthmark that appears in adolescence or the twenties as a flat brown discolouration in which darker thicker hairs may later grow. It is usually located on the shoulder, chest or back. It occurs most commonly in males. Image reproduced with permission of […]

Basal Cell Carcinoma (BCC)

What is it? Also known as … a Rodent Ulcer Basal Cell Carcinoma (BCC) is the most common type of skin cancer. Fortunately it is usually the least dangerous and almost always completely curable by treatment. BCC accounts for more than three-quarters (75%) of all skin cancers. Most basal cell carcinomas are slow-growing and almost […]

Balanitis & balano-posthitis

What is it? Balanitis is inflammation of the glans penis (head or knob of the penis) due to any cause. In uncircumcised males (the foreskin or “prepuce” is still present) inflammation of both the glans and the foreskin together is called Balano-Posthitis. What causes it? Balanitis and balano-posthitis may be caused by many different skin […]